Alkylation of alkanes with alkyl halides

Details Alkylation of alkanes with alkyl halides Alkylation of alkanes with alkyl halides

1996-08-08

1998-06-09

Caldarola, Glenn

Chemistry of hydrocarbon compounds

Saturated compound synthesis

By condensation of a paraffin molecule with an olefin-acting...

585721, 585727, 502327, 502328, 502330, 502304, 502340, 502341, 502344, 502347, 502348, C07C 258, B01J 2340, B01J 2350, B01J 2302

Patent

active

057637296

ABSTRACT:
Although olefins commonly are used to alkylate alkanes using various solid acid catalysts, the process is severely hampered by short catalyst lifetimes attending substantial olefin oligomerization. This problem can be avoided by using an alkyl chloride as the alkylating agent. Thus, alkylation of isobutane by olefin in the presence of a modified, AlCl.sub.3 -type Friedel-Crafts catalyst at 30.degree.C falls to about 77% in four hours, whereas alkylation with sec-butyl chloride at the same conditions fell to 88% over 30 hours.

REFERENCES:
patent: 2882324 (1959-04-01), Schmerling
patent: 2999074 (1961-09-01), Bloch et al.

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